Paper Abstract and Keywords |
Presentation |
2007-10-18 11:30
A Study on Structure and Adaptive Algorithm of Adaptive Notch Filter Based on Expansion of Fourier Sine Series Masaki Kobayashi, Chi Wang (Chubu Univ.), Yoshio Itoh (Tottori Univ.) CAS2007-41 NLP2007-69 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
In this paper, we consider an adaptive notch filter that realizes the phase shift of the all-pass filter by the Fourier sine series expansion. The method to control the weights of the all-pass filter composed by IIR filter is known well.However, these adaptive notch filter have not been put to practical use since the inevitable stability problem of IIR filter and the problem concerning the determination method of the degree of IIR filter exist. The proposed adaptive notch filter is always stable since the all-pass filter is composed by an exponential filter. Moreover, the adaptive algorithm is a simple gradient based algorithm and the convergence of weights is guaranteed. The degree of the all-pass filter only depends on the required steepness of the elimination characteristic and does not depend on the number of narrowband signals that should be eliminated. Moreover, it can be said that the proposed method is a suitable method for practical use since the elimination characteristic hardly influenced by the broadband signal added to the narrowband signal. Finally, the analytical results and the above mentioned feature are strictly verified by computer simulation. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Narrowband Signal / Phase Shift / Cost Function / Exponential Filter / All-pass Filter / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 264, CAS2007-41, pp. 37-42, Oct. 2007. |
Paper # |
CAS2007-41 |
Date of Issue |
2007-10-11 (CAS, NLP) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) |
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CAS2007-41 NLP2007-69 |
Conference Information |
Committee |
CAS NLP |
Conference Date |
2007-10-18 - 2007-10-19 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Musashi Institute of Technology |
Topics (in Japanese) |
(See Japanese page) |
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Paper Information |
Registration To |
CAS |
Conference Code |
2007-10-CAS-NLP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
A Study on Structure and Adaptive Algorithm of Adaptive Notch Filter Based on Expansion of Fourier Sine Series |
Sub Title (in English) |
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Keyword(1) |
Narrowband Signal |
Keyword(2) |
Phase Shift |
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Cost Function |
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Exponential Filter |
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All-pass Filter |
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1st Author's Name |
Masaki Kobayashi |
1st Author's Affiliation |
Chubu University (Chubu Univ.) |
2nd Author's Name |
Chi Wang |
2nd Author's Affiliation |
Chubu University (Chubu Univ.) |
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Yoshio Itoh |
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Tottori University (Tottori Univ.) |
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Speaker |
Author-2 |
Date Time |
2007-10-18 11:30:00 |
Presentation Time |
20 minutes |
Registration for |
CAS |
Paper # |
CAS2007-41, NLP2007-69 |
Volume (vol) |
vol.107 |
Number (no) |
no.264(CAS), no.266(NLP) |
Page |
pp.37-42 |
#Pages |
6 |
Date of Issue |
2007-10-11 (CAS, NLP) |
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